alpha-1-antitrypsin; PiZZ, a1-ATZ phenotype; ER, endoplasmic acts with the target P 1 -P 1 residues of the reactive center loop, reticulum; MHC, major histocompatibility complex. the loop inserts further into the gap in the A sheet, generating From the: Departments of Pediatrics, Cell Biology, and
Molecular pathogenesis of alpha-1-antitrypsin deficiency-associated liver disease: A meeting review
β Scribed by David H. Perlmutter; Jeffrey L. Brodsky; William F. Balistreri; Bruce C. Trapnell
- Publisher
- John Wiley and Sons
- Year
- 2007
- Tongue
- English
- Weight
- 321 KB
- Volume
- 45
- Category
- Article
- ISSN
- 0270-9139
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β¦ Synopsis
In recent years, we have witnessed several important paradigm shifts in understanding the molecular basis of liver disease in alpha-1-antitrypsin (AT) deficiency. These shifts have become possible as a result of a number of advances in research on the cell biology of aggregation-prone mutant proteins and in research on the pathobiological mechanisms of liver disease in general. Late-breaking research in these areas was the subject of an AASLD/Alpha-1 Foundation Single Topic Conference in Atlanta, Georgia, on January 26 to 28, 2006. The conference was titled "Alpha-1-Antitrypsin Deficiency and Other Liver Diseases Caused by Aggregated Proteins." Investigators from all over the world, representing a broad array of scientific disciplines and perspectives, discussed the pathobiology of AT deficiency, mechanisms of cell injury in diseases associated with aggregation-prone proteins, pathways by which cells respond to protein aggregation and mislocalization, and mechanisms of liver injury in general and in diseases related to AT deficiency. A session of the meeting was devoted to novel therapeutic strategies being developed for AT deficiency as well as to strategies either in development or already being applied to the class of diseases associated with mutant proteins.
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Alpha(1)-antitrypsin deficiency (AATD) due to homozygosity of the protease inhibitor (Pi) Z variant predisposes to childhood liver disease and pulmonary emphysema. About 10% of all neonates with AATD develop liver disease, and about 3% overall progress to severe disease. AATD is a principal genetic
## Abstract Alpha 1 antitrypsin phenotypes and serum levels are presented for a family in which two brothers have Weber Christian disease and Ξ±1 antitrypsin (PI) Z phenotypes. Clinical histories are described for these two men. A younger brother has the PI Z phenotype but does not have the disease,